A PROPOSAL FOR THE MEASUREMENT OF THE REAL EMITTANCE OF THE BEAM IN CYCLIC ACCELERATORS

XU Jian-Ming; LIU Shi-Yao

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1983, Vol. 7> Issue(2) : 178-185

A PROPOSAL FOR THE MEASUREMENT OF THE REAL EMITTANCE OF THE BEAM IN CYCLIC ACCELERATORS

XU Jian-Ming ^, ,
LIU Shi-Yao

Abstract
HTML
Reference
Related

PDF

Abstract：
In this paper, the envelope of numatched beam in the periodic focusing system is analyzed and the expression of beam cross section is given. We find that, by using the commonly used methods, we can't get the real emittance of the beam in the ring accelerators, but can only get the acceptance of the accelerator corresponding to the maximum aperature filled by the beam.
In this paper, we propose to measure the beam envelope by a thin plastic scintillation filament. And from the measured data we can get the real emittance of the beam. At the same time, we can get the tune values, the coherent oscillation amplitude and its frequency and the closed orbit distortion.

References

[1]

Schonauer, A., Beamscope-A novel device for measuring emittances and betatron amplitude distributions, CERN/PS/BR 79-8.[2] Antoniou,E., On a data reduction method for emittance measurement using the targets in the CERN PS booster rings. PS/BR Note/77-29.[3] 徐建铭，用三靶测定发散度椭圆的方法的分析，粒子加速器及其应用(科学技术文献出版社重庆分社，1980), 133页.[4] Bovet, C., Placei, A., Rabany, M., The instrumentation of the secondary beams at the CERN SPS, CERN-SPS-EBP/CB/CP 1977.

[1]	SUN Bao-Gen , LUO Qing , WANG Xiao-Hui . Recent Developments of Beam Diagnostics. Chinese Physics C, 2008, 32(S1): 145-147.
[2]	LIU Wei-Bin , WANG Shu-Hong , YE Qiang , WANG Lin . Emittance Measurement at BEPCⅡ Linac. Chinese Physics C, 2008, 32(S1): 86-88.
[3]	HUANG Guo-Qing , YE Kai-Rong . Beam Measurement Using Digital Technology. Chinese Physics C, 2008, 32(S1): 142-144.
[4]	WANG Shu-Hong , PEI Guo-Xi , LIU Wei-Bin , CHEN Yan-Wei , YE Qiang , GENG Zhe-Qiao . Studies on the Beam Orbit and Energy Instabilities at the BEPCⅡ Linac. Chinese Physics C, 2007, 31(11): 1067-1070.
[5]	ZHENG Jian-Hua , LIU Wei , WANG Yi-Fang , WANG Yan-Mou , MA Wei-Nian , YIN Yan , SONG Hai-Hong . High Sensitivity Beam Phase Measurement System for Isochronous Cyclotron. Chinese Physics C, 2007, 31(3): 303-306.
[6]	ZHOU Jun , ZHU Da-Jun , LIU Sheng-Gang , WANG Han-Bin , XU Zhou , LIU Xi-San . Study on the Beam Focusing Property of 1.2MeV Electron Accelerator. Chinese Physics C, 2006, 30(11): 1116-1118.
[7]	YANG Xue-Qing , FANG Jia-Xun , GUO Zhi-Yu , CHEN Jia-Rong . Matching Design Method for High Intensity RFQ Accelerators. Chinese Physics C, 2006, 30(S1): 19-21.
[8]	YANG Guo-Jun , ZHANG Zhuo , CHEN Si-Fu , XU Tie-Zheng , MU Fan , lijin , JIANG Xiao-Guo . Beam Measurement of Dragon-I Linear Induction Accelerator. Chinese Physics C, 2006, 30(S1): 105-107.
[9]	CHEN Yan-Wei , WANG Shu-Hong , PEI Guo-Xi , LIU Wei-Bin , YE Qiang . Beam Commissioning of BEPCII Injector Linac. Chinese Physics C, 2006, 30(6): 562-565.
[10]	PEI Shi-Lun , WANG Shu-Hong . Transient Beam Loading Effects on Standing Wave Cavities in Linear Accelerators. Chinese Physics C, 2006, 30(5): 454-461.
[11]	XING Qing-Zi , FU Shi-Nian , LIN Yu-Zheng , FANG Shou-Xian . Calculation of Beam Acceptance for RFQ Accelerators. Chinese Physics C, 2003, 27(7): 628-632.
[12]	YAN Wen-Biao , CAI Xiao , CHI Shao-Peng , DAI Yu-Mei , HUANG Guang-Shun , LI Hui-Hong , WANG Zhi-Yong , ZHANG Lei , ZHANG Liang-Sheng , ZHAO Zheng-Guo . Subtraction of Beam-Associated Background in R Measurement. Chinese Physics C, 2002, 26(10): 998-1003.
[13]	OUYANG Hua-Fu . Effects of the Space Charge Forces and the Beam Halo in an AVF Cyclotron with Intense Beam Currents. Chinese Physics C, 2001, 25(6): 561-570.
[14]	Zhang Chuang . Beam Energy Correction in Synchrotrons. Chinese Physics C, 1999, 23(3): 308-312.
[15]	Tang Jingyu , Lei Wen , Wang Yifang . Beam Loss in HIRFL-CSR Due to CollisionsWith Residual Gas in Vacuum. Chinese Physics C, 1998, 22(8): 745-754.
[16]	Chen Yinbao , Huang Zhibin , FuShinian . Scaling Law of Emittance Growth for Bunched Beam with Gaussian Density Distribution in Both Longitudinal and Transverse Directions in Linac. Chinese Physics C, 1997, 21(7): 657-663.
[17]	YIN Zhao-Sheng , XU Jian-Ming . SOME METHODS OF PRODUCING LOCAL SKEW QUADRUPOLE FIELD IN ACCELERATOR RING. Chinese Physics C, 1988, 12(3): 361-364.
[18]	YUAN Qin-Liang , WANG You-Zhi , SHI Cai-Tu , CHEN Guan-Xiong , ZHANG Shu-Xiang , CHEN Ren-Huai , LIU Mao-San . APPLICATION OF PERMANENT MAGNET LENSES IN ACCELERATORS BEAM TRANSPORT AND FOCUSING. Chinese Physics C, 1987, 11(1): 11-15.
[19]	LOU ZI-HUA . REDUCTION OF THE BEAM ENERGY SPREAD OF RFQ BY DEBUNCHER. Chinese Physics C, 1982, 6(4): 507-511.
[20]	LUO ZI-HUA , LUO YING-XIONG , WANG LIN-LIN . STUDY OF THE BEAM TRAMSVERSE MOTION IN THE RFQ STRUCTURE. Chinese Physics C, 1982, 6(6): 688-696.

Access

Get Citation

XU Jian-Ming and LIU Shi-Yao. A PROPOSAL FOR THE MEASUREMENT OF THE REAL EMITTANCE OF THE BEAM IN CYCLIC ACCELERATORS[J]. Chinese Physics C, 1983, 7(2): 178-185.

XU Jian-Ming and LIU Shi-Yao. A PROPOSAL FOR THE MEASUREMENT OF THE REAL EMITTANCE OF THE BEAM IN CYCLIC ACCELERATORS[J]. Chinese Physics C, 1983, 7(2): 178-185. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(2098)
PDF Downloads(459)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, [email protected]

1.
沈阳化工大学材料科学与工程学院沈阳 110142

A PROPOSAL FOR THE MEASUREMENT OF THE REAL EMITTANCE OF THE BEAM IN CYCLIC ACCELERATORS

XU Jian-Ming ^,
LIU Shi-Yao

Corresponding author: XU Jian-Ming,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1983-04-05

Abstract: In this paper, the envelope of numatched beam in the periodic focusing system is analyzed and the expression of beam cross section is given. We find that, by using the commonly used methods, we can't get the real emittance of the beam in the ring accelerators, but can only get the acceptance of the accelerator corresponding to the maximum aperature filled by the beam.
In this paper, we propose to measure the beam envelope by a thin plastic scintillation filament. And from the measured data we can get the real emittance of the beam. At the same time, we can get the tune values, the coherent oscillation amplitude and its frequency and the closed orbit distortion.